Adjustable lead angle chamfering toolholder
CA 2284869 A1 · Owner: Kennametal Inc. · Inventors: Hartshorn, Jeffrey E.; Fowler, Jeremy L.; Vogel, Scott W. (Deceased)
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An adjustable lead angle toolholder is disclosed for selectively cutting a workpiece at 30~, 45~, or 60~ angles. The toolholder may have a rotatable cylindrical endmill body (5) that includes a radially-oriented wall (9) or a stationary, square shank having a planar wall on its distal end. The toolholder further includes a cutting insert (18) having at least one linear cutting edge (18), and a mounting assembly (11) for pivotally mounting the insert (18) onto the wall (9) of the endmill body (5) such that a lead angle of the linear cutting edge (19) is adjustable with respect to the outer periphery of the toolholder body.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed April 7, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 7, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 7, 2020.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.